Swivel coupling



. May 1, 1929, J. L. BATTNFLQ 1.112.130

Filed may 14, 1923 v ,wfafI/,M Ss. Wv

f Qwff ATTORNEYS ing washer 5. l ingis a swivelmember or lug 6 which has a.

' casing.

atented May 7, 1929.

UifviraDlsfrATEs' PATENT *orifice JAY* L. BTTENFELD, OF CLEVELAND, OHIO, SIGNOR To 'rifa JOHNSTON a .inmunes oomANm OF CLEVELAND," OHIO, .t CORPORATION or onto..

A Application tiled May 14,

The present inventionrelates tojajwivel coupling for hoselines andniore articular-` ly relates to coupling suitable or. attachin zntto Vi'iioldjijng machines, vibrators, pneu- 'inatic tools itiifd the l-ik'ef The present couthen, 'oonsistsof the means 'hereinafter fully describedv and particularly pointedv out in the claim.

The vannexed drawing and the following descriptionlset forth'in detail certain mechanisin embodying the invention, such disv closed 'means constitutin however, but one of various mechanical orms in which the principle .ofthe invention may be used.

In said annexed-'drawngzf Fig. lis=a verticalsectional view through the device; Fig; 2 isav sectional view on -the line 2-2 ofFig. 1; and Fig. Sis a sectional view similarA to Eig. 1 butishowing a moditicd form ofjcoupliiig. l

As shown in the drawings, the cmipling coinpris'esa sniiill cylindrical casing or cup l open at the top 4and provided with internal threads 2. The bottom of the casing is 'providedwith acentral aperture" 3 vforming an annular shoulder or seat 4 to receive a pack- Rotatably mounted in the casreduced lower end 7 exteriorly threaded and adapted to' be secured tothe machine to which the coupling is connected, This plug extends throu' h the aperture 3 and near t etop is 'provi ed with a flange 8- loosely fitting Athe interior of the casing and resting on the washer 5. Above the flange 8the' plug is smaller in diameter and this upper end extends nearly to the level of'thetop of the The plug has a longitudinal bore -or air passage 9"extending therethrough and just above lthe flange is provided with a series of radial apertures y bore. At one side the casing is provided with a hollow hose connectingtube 11 having its exterior formed with a series of cone shaped' portions 12, the tube being adapted to iit within a hose in which it will be clamped .in perture 13 through the coupling tube is in ine with the radial apertures 10 n the plug, thus allowing pas- 1 0 communicating with the` 'swim OOUPLINO.-

i923. js/ridi No. 638,903.

rsage-of the air through the swivelroupliug. To hold the plug in' place in the casing and to prevent air leakage, a cover 14 is provided' tlaiige down tightly Oii tothe packing, washer preventing air leakage ,when `in use.

`In Fig. 8 a slightly modilied form Of coupling is shown in which the pli.' '20 has no radial apertures but only a longitudinal aperture 2,1. In this case the cover :22 is pro` vided -with the hollow hose 'coupling tube 23 connecting'directlywith the hoi-e in the plug.

`In other respects the coupling'is identical with the first forn i.

The present device swivels or turns easily as the-plug niciiibci' is loosely iiiouiitcdin the casin thc air pressure being adapted to seal the p ug. The present coupling is particularly adapted to intermittent service where the rotating oi' turning of the coupling is done when the air pressure is cut-'oli as ot course the air pressure against the tlange makcs it niorc diflu'ult to inovc thc parts relative to.

each other. The coupling has only four parts and is easily assembled. rliic parts uccd only have a `loose lit' except for the cover threads and thus niiiv be cheaply manufactured.

Other, inodcsl of applying the principle of my invent-ion may be employed instead of the one explained, chang(l being made as regards the mechanism herein disclosed` provided the means stated bythe followingclai'in or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as niy nventionz-f- In a swivel coupling, the combination of a cup shaped casing open at the top and having a central aperture in the bottom leav-` ing an annular shoulder, the eup'being interiorly threaded adjacent thc top and being provided with a hollow hose connecting tube dial holes above said ange eonnnunicat-innr lwith said an' passage, and a vcover' foin-san cup having a .downwardly extending externally threaded flange adapted to engage 5 'with said threaded portion of said cup, said flange being bored-'to provide a recess to rc' eeive the upper portion of said swivel plug member to hold the same in :digiuni-nt :1nd lo prevent upward movement of the same 1n said cup; he top of'sald swivel plug cn- 10 .gafvng the bottom of said recess.

gned by me this 11th day of May, 1.923.

,JAY L.V BATTE-MELD. 

